Optimize memory usage in moviepy

Upgrade version number to 1.2.0

app/config/config.py

@@ -56,7 +56,7 @@ project_description = _cfg.get(
     "project_description",
     "<a href='https://github.com/harry0703/MoneyPrinterTurbo'>https://github.com/harry0703/MoneyPrinterTurbo</a>",
 )
-project_version = _cfg.get("project_version", "1.1.9")
+project_version = _cfg.get("project_version", "1.2.0")
 reload_debug = False
 
 imagemagick_path = app.get("imagemagick_path", "")

app/services/video.py

@@ -298,6 +298,7 @@ def generate_video(
         fps=30,
     )
     video_clip.close()
+    del video_clip
     logger.success("completed")
 
 
@@ -342,6 +343,7 @@ def preprocess_video(materials: List[MaterialInfo], clip_duration=4):
             video_file = f"{material.url}.mp4"
             final_clip.write_videofile(video_file, fps=30, logger=None)
             final_clip.close()
+            del final_clip
             material.url = video_file
             logger.success(f"completed: {video_file}")
     return materials